Observation information
- date-obs: 2020-09-23
- time-obs: 23:54:36.215600000
- date-end: 2020-09-24
- time-end: 02:00:21.212600000
- obs_id: A09_145T01_9000003900
- exposure: 4379.41364801
- sourceid: Crab
- observer: aarthy
- ra_pnt: 83.63308
- dec_pnt: 22.0145
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A09_145T01_9000003900_26982cztM0_level2.evt
| modeM0/AS1A09_145T01_9000003900_26982cztM0_level2_quad_clean.evt
|
| Size (bytes) | 704,776,320 | 109,154,880 |
| Size | 672.1 MB
| 104.1 MB
|
| Events in quadrant A | 10,239,062 | 570,314 |
| Events in quadrant B | 3,385,671 | 811,439 |
| Events in quadrant C | 3,361,691 | 763,996 |
| Events in quadrant D | 3,936,435 | 724,798 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 34648 | 0 |
| B | 0 | 13763 | 0 |
| C | 0 | 13682 | 0 |
| D | 0 | 15734 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6226 | 3212 | 51.590106% |
| B | 6226 | 83 | 1.333119% |
| C | 6226 | 116 | 1.863155% |
| D | 6226 | 198 | 3.180212% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
| Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
| A | 7526 | 6226 | 2687 | 2687 | 35.70% | 43.16% |  |
| B | 7526 | 6226 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7526 | 6227 | 3 | 3 | 0.04% | 0.05% |  |
| D | 7526 | 6227 | 143 | 143 | 1.90% | 2.30% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
| Pixel properties |
Quadrant properties |
| Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
| A | 14 | 235 | 5051792 | 38948.85 | 642 | 634 | 129.7 |
| A | 6 | 16 | 2688324 | 20724.44 | 642 | 634 | 129.7 |
| A | 8 | 192 | 23609 | 177.16 | 642 | 634 | 129.7 |
| B | 15 | 222 | 21480 | 128.78 | 854 | 836 | 160.3 |
| B | 0 | 219 | 20397 | 122.02 | 854 | 836 | 160.3 |
| B | 12 | 111 | 18355 | 109.28 | 854 | 836 | 160.3 |
| C | 14 | 238 | 132007 | 687.2 | 821 | 830 | 190.9 |
| C | 15 | 208 | 29040 | 147.78 | 821 | 830 | 190.9 |
| C | 13 | 61 | 5633 | 25.16 | 821 | 830 | 190.9 |
| D | 1 | 52 | 717505 | 3401.64 | 797 | 785 | 210.7 |
| D | 2 | 250 | 147550 | 696.56 | 797 | 785 | 210.7 |
| D | 2 | 234 | 26894 | 123.92 | 797 | 785 | 210.7 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
| Quadrant A |
 |
 |
Quadrant B |
| Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
| Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
| Parameter |
Plot |
| CZT HV Monitor |  |
| D_VDD |  |
| Temperature 1 |  |
| Veto HV Monitor |  |
| Veto LLD |  |
| Alpha Counter |  |
| _CPM_Rate |  |
| CZT Counter |  |
| +2.5 Volts monitor |  |
| +5 Volts monitor |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |